AA40 Aqua Ultraviolet Ultima II Filter – 4000 Gallon Pond Max
AA40 Aqua Ultraviolet Ultima II Filter – 4000 Gallon Pond Max Ultima Filters are superior to bead filters because of their patented bio-tube media which does not clump together like beads do. No need for a blower for back washing! Super easy to backwash – never get your hands wet! Unique filter media allows for